Kirinyaga Governor Ann Waiguru has raised rigging claims even as tallying is underway.
She claimed that two ballot were sneaked in Kianyaga during the day.
"Rigging in broad light -Two ballot boxes with governors' ballot enter Kianyaga through the back door in broad dayllight!"
"They mus be removed and counting must ," Waiguru added.
The governor is seeking to defend her seat for a second term under the United Democratic Alliance ( UDA) Party .
Her main rival, Wangui Ngirici is on an independent ticket.
On Tuesday, has expressed confidence in the election process.
Speaking at Kaitheri Polytechnic polling station in Kerugoya town shortly after casting her vote, the independent candidate urged her supporters to come out in large numbers to vote for change.
She termed the exercise as transformative and called on the voters to exercise their civic duty wisely.